function initTestimonialImage () {
  //Bilderanzahl  
  var min = 1;
  var max = 10;
  var neuNr = Math.round(Math.random() * (max - min + 1) - 0.5) + min;
  
  var pfad = '/zentrale/layout/teaser/';
  var bild = pfad+"digital_teaser05_testimonial_"+neuNr+".jpg";
  
  eval ('document.testimonial_image.src = bild');
  }

digital = {
    map: null,
    convert: function(a) {
        digital.init();

        var s = "";
        for (i=0; i < a.length; i++) {
            var b = a.charAt(i);
            s += ((b>='A' && b<='Z') || (b>='a' && b<='z') ? digital.map[b] : b);
        }
        return s;
    },

    init: function() {
        if (digital.map != null)
            return;
              
        var map = new Array();
        var s   = "abcdefghijklmnopqrstuvwxyz";

        for (i=0; i<s.length; i++)
            map[s.charAt(i)] = s.charAt((i+13)%26);
        for (i=0; i<s.length; i++)
            map[s.charAt(i).toUpperCase()] = s.charAt((i+13)%26).toUpperCase();

        digital.map = map;
    },

    write: function(a) {
        document.write(digital.convert(a));
    }
}